Quote Originally Posted by uRock View Post
+1 I installed lubuntu 32bit on my old Lenovo and it runs better that the 64 bit install did. That system only has 2 gigabytes of RAM.
Compare compressing/uncompressing files, encoding/decoding audio & video, running encryption algorithms etc and you will see 64-bit wins by a big margin.

If you have a 64-bit system there's very little point in not running a 64-bit OS as it will perform better. The one downside is 64-bit will use more RAM and if you are short on RAM you will take a hit, 4GB however is plenty.